bluetooth.py 文件源码

def __init__(self, adapter=0):
        # s = socket.socket(socket.AF_BLUETOOTH, socket.SOCK_RAW, socket.BTPROTO_HCI)
        # s.bind((0,1))

        # yeah, if only
        # thanks to Python's weak ass socket and bind implementations, we have
        # to call down into libc with ctypes

        sockaddr_hcip = POINTER(sockaddr_hci)
        cdll.LoadLibrary("libc.so.6")
        libc = CDLL("libc.so.6")

        socket_c = libc.socket
        socket_c.argtypes = (c_int, c_int, c_int);
        socket_c.restype = c_int

        bind = libc.bind
        bind.argtypes = (c_int, POINTER(sockaddr_hci), c_int)
        bind.restype = c_int

        ########
        ## actual code

        s = socket_c(31, 3, 1) # (AF_BLUETOOTH, SOCK_RAW, HCI_CHANNEL_USER)
        if s < 0:
            raise BluetoothSocketError("Unable to open PF_BLUETOOTH socket")

        sa = sockaddr_hci()
        sa.sin_family = 31  # AF_BLUETOOTH
        sa.hci_dev = adapter # adapter index
        sa.hci_channel = 1   # HCI_USER_CHANNEL

        r = bind(s, sockaddr_hcip(sa), sizeof(sa))
        if r != 0:
            raise BluetoothSocketError("Unable to bind")

        self.ins = self.outs = socket.fromfd(s, 31, 3, 1)